Base | Representation |
---|---|
bin | 10001010011010… |
… | …00001010111011 |
3 | 101010002101011112 |
4 | 20221220022323 |
5 | 244123131141 |
6 | 22222350535 |
7 | 3411405014 |
oct | 1051501273 |
9 | 333071145 |
10 | 145130171 |
11 | 74a1649a |
12 | 4072b44b |
13 | 240b5454 |
14 | 153bc00b |
15 | cb1b7eb |
hex | 8a682bb |
145130171 has 2 divisors, whose sum is σ = 145130172. Its totient is φ = 145130170.
The previous prime is 145130159. The next prime is 145130179. The reversal of 145130171 is 171031541.
It is a happy number.
It is a strong prime.
It is a cyclic number.
It is not a de Polignac number, because 145130171 - 210 = 145129147 is a prime.
It is not a weakly prime, because it can be changed into another prime (145130179) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (13) of ones.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72565085 + 72565086.
It is an arithmetic number, because the mean of its divisors is an integer number (72565086).
Almost surely, 2145130171 is an apocalyptic number.
145130171 is a deficient number, since it is larger than the sum of its proper divisors (1).
145130171 is an equidigital number, since it uses as much as digits as its factorization.
145130171 is an odious number, because the sum of its binary digits is odd.
The product of its (nonzero) digits is 420, while the sum is 23.
The square root of 145130171 is about 12046.9984228438. The cubic root of 145130171 is about 525.5159505244.
The spelling of 145130171 in words is "one hundred forty-five million, one hundred thirty thousand, one hundred seventy-one".
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